Shop Windows to the Universe Science Store!

Cool It! is the new card game from the Union of Concerned Scientists that teaches kids about the choices we have when it comes to climate change—and how policy and technology decisions made today will matter. Cool It! is available in our online store.

You might also be interested in:

The thermosphere is the fourth layer of the Earth's atmosphere. It is found above the mesosphere. The air is really thin that high up. The temperature changes with the solar activity. If the sun is active,...more

The Martian ionosphere is a layer of gas that is very high up above Mars. It extends from about 75 miles up to several hundred miles up above the surface. It is shown by the shaded region circling the...more

Interested in doing a project related to space weather for a science fair? The Stanford SOLAR Center provides information about space weather monitors that you can build yourself, including the Sudden...more

Spacecraft help us look at space weather. We can also make some space weather measurements from the surface of Earth. Instruments on the ground are cheaper and are easier to fix than instruments on spacecraft....more

Scientists were finally able to launch CAPER. CAPER is a rocket that studies particles that leave the Earth's atmosphere. Scientists think that electrical currents in the ionosphere let gases escape into...more

Space weather causes electricity to flow in our atmosphere. Sometimes that electricity lights up the sky! It causes the aurora (the Southern and Northern Lights). The electric currents in the atmosphere...more

Rainbows appear in the sky when there is bright sunlight and rain. Sunlight is known as visible or white light and is actually a mixture of colors. The sun's rays pass through millions of raindrops. A...more